Wires, strands, and turn counts.
Well, this is a subject that has been talked about many times over the past decade on the ES, and I'm not going to
step too hard on that quicksand. There are a few good posts on the subject, and I'll put the links below.
And some great research by Doctorbass; https://endless-sphere.com/forums/viewt ... 16&t=19301
As I understand, first, you need to start with the controller, and what it can handle. Then it's up to tooth turns, which
determine the speed of the motor, given the same voltage. Theres also the size of the wire, or strands, that determine
the current capability, and overall resistance of the windings, and phase wires.
To complicate things, theres the number of motor slots. or windings, of different motors, that will change resistance's
and phase frequency's. (take two aspirin now)
Most of these motors use multi strand wire, because a solid strand wire is very stiff, and hard to wind within the radial
motors slots.10 strands of 24 awg wired in parallel, is the same as one strand of 14 awg wire, but much more supple to
work with. Same weight too.
One way you can convert multi strands to solid strand is to use the amount of ohms per foot,.. or thousand feet. (chart)
24 awg wire is 25 ohms per thousand feet, so ten of those strands together will be 2.5 ohms.
(decimal goes backwards with ohms).
Looking at a wire chart we can see that 14 awg wire is 2.5 ohms per thousand feet. 10x24 = one 14 awg.
There are endless combinations of strand gauges and counts that can be employed, but some will result in better copper
fill, because of the wasted space in between the round wires changes. If wire was made in a square cross section, you
could possibly achieve 100% fill, but it would be difficult to keep all of the squares perfectly oriented with each other.
Since this motor has straight cores, I can go either way with strand or solid wire, although since I've already bought the
24 awg wire, thats the way I'll go.
But I think the solid strand looks better, and comes out to exactly 12 turns. (I didn't have enameled wire for the photo)
Since I don;t know enough about designing motors, I'm trying to mimic the basic constructions of the Crystalyte motor
and controller. That's why I'm using the 10/6 tooth winding, but since both the N and S poles are on one core now, they
each will have 12 turns of 10 strands.
Plus, I have less poles now, so there will be less resistance overall, and I need to add a few turns to each pole to
compensate. (42 vs 53 poles)
This will make the motor turn a little slower, but having less poles should make it turn a little faster.
(a lot of finger crossing here)
At any rate, I have gearing, so speed doesn't really mater, I'm more concerned in the resistance of the final phase wires.